Check out this cool alternative method: save your current track as a MIDI file, then import it back in and switch up the instruments. In this way you can generate alternative variations of the same track or create completely new track.

Original input is my deconstruct on C+C Music Factory - Here we go
https://lmms.io/lsp/?action=show&file=22965

I converted the export WAV file into midi and imported back in new LMMS project as midi file and set other instruments.

This is the result.

https://www.youtube.com/watch?v=fn5f0SEGAi8